<template>
   
         <el-container class="home-container">
             <!-- 头部区域 -->
        <el-header>

            <div>
                <img src="../assets/heima.png" alt="">
                <span>电商后台管理系统</span>
            </div>
            <el-button type="info" @click="logout">退出</el-button>
            
            </el-header>
            <!-- 主体区域 -->
        <el-container>
            <!-- 左侧菜单栏 -->
            <el-aside :width="isCollapse ? '64px':'200px'">
                <div class="toggle-button" @click="toggleCollapse">|||</div>
                
                <el-menu
                    background-color="#333744"
                    text-color="#fff"
                    active-text-color="#379aff" unique-opened :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
                    <!-- YI一级菜单 -->
                    <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id" >
                        <template slot="title">
                        <i :class="iconsObj[item.id]"></i>
                        <span>{{item.authName}}</span>
                        </template>
                        <!-- 二级菜单 -->
                        <el-menu-item :index="'/'+subItem.path " v-for="subItem in item.children" :key="subItem.id" >
                            <template slot="title">
                            <i class="el-icon-menu"></i>
                            <span>{{subItem.authName}}</span>
                            </template>
                        </el-menu-item>
                       
                    </el-submenu>
                    </el-menu>
               
            </el-aside>
            <!-- 右侧主体区域 -->
            <el-main>
                <!-- 路由占位符 -->
                <router-view></router-view>
            </el-main>
        </el-container>
        </el-container>
   
       
           
</template>

<script>
export default {
     name:"home",
     data() {
         return {
            //左侧菜单数据
             menulist:[],
            //  字体图标数据
            iconsObj:{
                '125':'iconfont icon-user',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            // 控制左菜单的折叠与展开
            isCollapse:false,
            // 记录高亮导航的路由地址
            activePath:''
         }
     },
     created() {
            // 调用获取菜单的方法
               this.getMenuList()
            //组件加载时 获取当前的路由地址
            // console.log( location.hash.slice(1));
            this.activePath= location.hash.slice(1)
        },
        watch:{
            $route(to,from){
                this.activePath = to.path
                // console.log(to);
            }
        },
    methods: {
        logout(){
            window.sessionStorage.clear()
            this.$router.push("/login")
        },
        // 获取所有的菜单 定义方法
        async getMenuList(){
            const { data:res} =await this.$http.get('menus')
            // if判断是否获取成功，如果不等于200 就获取失败 提示失败的消息
            if(res.meta.status !==200) return  this.$message.error('获取左侧菜单失败')
            // 获取菜单成功 把值赋值给menulist
            this.menulist= res.data
            // console.log(res);
        },
        // 点击控制左菜单的折叠与展开
        toggleCollapse(){
            this.isCollapse=!this.isCollapse
        }
        
    },
    
}
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header{
  background-color:#373D41;
   display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div {
        display: flex;
        align-items: center;
    } span{
        margin-left: 15px;
    }
}
.el-aside{
  background-color:#333744;
  .el-menu{
      border-right: 0;
  }
}
.el-main{
  background-color:#eaedf1;
}
.iconfont {
    margin-right: 10px;
}
.toggle-button {
    color: #fff;
    background-color: #4a5064;
    font-size: 10px;
    // 水平居中
    line-height: 24px;
    // 垂直居中
    text-align:center;
    // 加间距
    letter-spacing: 0.2rem;
    // 鼠标变成小手
    cursor: pointer;
}

</style>